/Engine/Source/Runtime/NullDrv/Public/NullRHI.h
Thread-safe function that can be used to create a texture outside of the rendering thread. This function can ONLY be called if GRHISupportsAsyncTextureCreation is true. Cannot create rendertargets with this method.
a reference to a 2D texture resource
virtual FTextureRHIRef RHIAsyncCreateTexture2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ERHIAccess InResourceState, void ** InitialMipData, uint32 NumInitialMips, FGraphEventRef & OutCompletionEvent )